Document Detail

Byssal proteins of the freshwater zebra mussel, Dreissena polymorpha.
MedLine Citation:
PMID:  23211030     Owner:  NLM     Status:  In-Data-Review    
The freshwater zebra mussel (Dreissena polymorpha) is a notorious biofouling organism. It adheres to a variety of substrata underwater by means of a proteinaceous structure called the byssus, which consists of a number of threads with adhesive plaques at the tips. The byssal proteins are difficult to characterize due to extensive cross-linking of 3,4-dihydroxyphenylalanine (DOPA), which renders the mature structure largely resistant to protein extraction and immunolocalization. By inducing secretion of fresh threads and plaques in which cross-linking is minimized, three novel zebra mussel byssal proteins were identified following extraction and separation by gel electrophoresis. Peptide fragment fingerprinting was used to match tryptic digests of several gel bands against a cDNA library of genes expressed uniquely in the mussel foot, the organ which secretes the byssus. This allowed identification of a more complete sequence of Dpfp2 (D. polymorpha foot protein 2), a known DOPA-containing byssal protein, and a partial sequence of Dpfp5, a novel protein with several typical characteristics of mussel adhesive proteins.
Arpita Gantayet; Lily Ohana; Eli D Sone
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biofouling     Volume:  29     ISSN:  1029-2454     ISO Abbreviation:  Biofouling     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-12-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9200331     Medline TA:  Biofouling     Country:  England    
Other Details:
Languages:  eng     Pagination:  77-85     Citation Subset:  IM    
a Institute of Biomaterials & Biomedical Engineering, University of Toronto , Toronto , ON , Canada.
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